Documentation/power/opp.rst

52 Instrument's OMAP framework allows to optionally boot at a certain OPP without
58  SoC framework	-> modifies on required cases certain OPPs	-> OPP layer
62 framework registers a set of initial OPPs per device with the OPP layer. This
64 This initial list contains a set of OPPs that the framework expects to be safely
70 As the system proceeds to operate, SoC framework may choose to make certain
73 SoC framework might choose to disable a higher frequency OPP to safely continue
89 the SoC specific framework which uses the OPP library. Similar care needs
95 device. It is expected that the SoC framework will register the OPP entries
98 operation. The SoC framework can subsequently control the availability of the
107 	This function may be used by SoC framework to define a optimal list
130 High level framework such as cpufreq operates on frequencies. To map the
145 	Example: In a case when SoC framework detects a situation where a
216 	SoC temperature is lower than a certain threshold. The SoC framework
233 	exceeds a threshold value. The SoC framework implementation might
252 framework to retrieve the information represented inside the OPP layer.
257 	framework requires to set the voltage represented by the OPP using
258 	the regulator framework to the Power Management chip providing the
274 	Example: Lets say the SoC framework uses a couple of helper functions
338 OPP library maintains a internal list that the SoC framework populates and
348 	provided back to the users such as SoC framework to be used as a
360 	OPP library such as the SoC framework.